Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
4733 ORO (1982 HB2)
Classification: Main-belt Asteroid          SPK-ID: 2004733
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07302603762662405 6.6683e-08  
a 2.185414570126562 1.0378e-08 AU
q 2.025822403498727 1.4716e-07 AU
i 4.715996927891479 6.3846e-06 deg
node 43.05133586523295 6.5796e-05 deg
peri 158.1137748797502 7.5063e-05 deg
M 48.56608958885023 3.7477e-05 deg
tp 2456841.304856766603
(2014-Jul-02.80485677)
0.00012281 JED
period 1180.046654964375
3.23
8.4056e-06
2.301e-08
d
yr
n .3050726837667856 2.1731e-09 deg/d
Q 2.345006736754396 1.1136e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1184  
   data-arc span      22852 days (62.57 yr)  
   first obs. used      1951-11-30  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51967  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:10:04  

Additional Information
 Earth MOID = 1.02429 AU 
 T_jup = 3.669 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO253395  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4733 ORO (1982 HB2)          Discovered 1982-Apr-19 by Oak Ridge Obs. at Harvard
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-20 16:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin